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Client - SCE Charge Ready Date - <br />Project -Brixen EVCS Made By - <br />Location -2100 S Fairview ST, Santa Ana, CA 92704 Orange County. Checked By - <br />Proj. No. -Preliminary - <br />9/18/2024 <br />DSS <br />- <br />80% Review1650605 <br />Description -Design calculations for footing pad of switchboard, Transformer, Distribution Panel, <br />EV Charger & Gateway Final -100% Review <br />4.0 Subgrade Modulus <br />A. Charging Cabinet foundation <br />Hence, Subgrade Modulus (K) = 216 kcf ( 125 pci considered) <br />Hence, Subgrade Modulus (K) = 216 kcf ( 125 pci considered) <br />Sample Calc: <br />Adjusting "K" for Minimum size of footing, = 6.00 x 9.50 <br />Width, B = 6.00 ft <br />Length, L = 9.50 ft <br />K 6x6 = K { (B + 1) / 2B }2 = 73.50 kcf <br />From RISA Help topic <br />K 6x9.5 = K 6x6 x {(1 + 0.5B/L) / 1.5}= 64.47 kcf <br />Subgrade Modulus = 64.47 k/ft3 <br />B. EV Charger <br />Hence, Subgrade Modulus (K) = 216 kcf ( 125 pci considered) <br />Sample Calc: <br />Adjusting "K" for Minimum size of footing, = 2.5 x 2.5 <br />Width, B = 2.50 ft <br />Length, L = 2.50 ft <br />K 2.5x2.5 = K { (B + 1) / 2B }2 = 105.84 kcf <br />From RISA Help topic <br />K 2.5x2.5 = K 2.5x2.5 x {(1 + 0.5B/L) / 1.5}= 105.84 kcf <br />Subgrade Modulus = 105.84 k/ft3